Condenser for redistilling spelter.



J. G. GRANBERG. CONDENSER `FOR REDISTILLING SPELTER. APPLICATION FILED ofc. s. IsIs.

Patented Apr. 3, 1917.

CONDENSER FOR. REDISTILLING SPE'LTER.

` Specification of Letters Patent.

Patented am.. a, iai 7.

Application tiled December S, 19H5. Serial Ito. 135,85.

To all whom'z't may conceive:

Be it known that I, JOHN G. GRANBERG, a citizen of the United States, and resident of Beclremeyer, illinois, have invented certain new and useful Improvements in Condensers 'for Redistilling Spelter, of which' the fol-l lowing is a specification containing a full,` clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to improvements in condensers for redistilling spelter and the object of my improvements is to provide a condenser of simple and inexpensive construction having a continuously open chargingand venting opening, a relatively small drawing opening in which a stopper is employed which is impervious to the metal and a fixed bridge at its retort end.

Condensers as are in common use are pr0- vided with va discharging mouth, arranged` to be stoppered to hold metal in the conv denser, by coal screenings. which completely close the condenser against the escape of gases which not infrequently attain pressures which the condenser is not capable of withstanding and which condition adds an element of danger to their use.

` The coal screening stopper is objectionable in that its causes a loss of production by taking up metal, the recovery 'of which requires a separate and more or less expensive operation. The coal screening stopper is further objectionable in .that in a service of five or siX days .it causes the condenser mouth to grow shut and inoperative.

The condenser constructed according to my invention eliminates the use of the coal screening stopper and its consequent loss of production as well as its tendency to cause the mouth to grow shut and in havingr the charging opening continuously open the annoyance and danger incident to the gases is obviated.

For the above purposes my invention consists in certain novel details of the construetion of the condenser and its arrangement and combination with the retort as will be fully, clearly and concisely set forth in my specification pointed out in my claims and illustrated by the accompanying drawing in which Figure l is a longitudinal sectional elo.'

-vation showing my improved condenser and its relation to a retort and furnace, and

Fig. 2 is an end view of the condenser.

Referring by numerals to the drawings, 5

designates the furnace which is of the type.

known as Belgium furnaces, and of which only 'a portion is shown.

At intervals throughout its height the rear wall, that is the'wall at the left hand side of Fig. l of the drawings, is provided with bricks 6 which extend inwardly from the wall proper to provide supportsfor the rear or inner ends of the retorts 7. f .y

n' the front wall. of the furnace, in number and arrangement similar tothe bricks '6, there are the openings 8 through which the retorts are inserted and in which the forward or outer ends of the retort-s are supported.

'In order to support the retorts at an incline with relation to the horizontal the openings 8 are disposed in a plane somewhat higher than the bricks 6, as is common.

lVhile the drawing shows one only of the retortsand a fragment of a second retort it is to be understood that the entire furnace' comprises a plurality of such retorts arranged usually in superposed rows.

The retorts are constructed of ceramic material and by preference of substantially cylindrical formation, their rear or inner ends being closed by an integral head 9 and their forward or outer ends l0 being open.

lt is to be observed from Fig. l that the end l0 is not` in its entirety at right angles to the axis of the retort, but that a portion. 1l thereof extends beyond the body of the retort and that the connecting line between said extended portion and the body is arcuated.

The numeral 12 designates the condenser, which is constructed of ceramic material, of substantially cylindrical formationyamd of a slightly lesser diameter than the rdtort, and has at its r`earmost end an integral bridge wall 13 whose lower inner face is shaped to conform with the outer ond 10 and the arcuated portion 11 of the retort. This construction provides a simple non-leaking joint between the -retort and the bridge of the condenser as well as a means for preventing relative rotational movements between the retort and condenser.

The rear end of the condenser diametrirally opposite the bridge, is provided with a pro]ect1n g dmvnwardly and rearwardly flange i4 which serves theI double function of filling into the end of the retort to' make a vapor tight joint and providing a lip which breaks the otherwise continuous overhead line of the retort and condenser tothe the condenser.

denser is open except for the bridge and the end that distillate will not be carried alon the overhead line to the outer open' end o This inner end of the confiange. p

At the outer end of the condenser there is a head 15, preferably formed integrally with the -condenser, which only partially'- closes the end of the condenser (as shown y, in Fig. 2) leaving an opening 16 through The operation of distillation of my ap-- paratus is substantially the same as the ones now 1n use except for .the charging and drawing.

In the' employment of my device the raw metal is first formed into zinc strips about 30 inches long,` about 2 inches wide and weigh in the neighborhood of 12 pounds, these strips are inserted through the opening 16 of the condenser and throu h the o en end 10 ofthe retort over the ridge wall 13, and placed in the retortcontaining the molten metal. melted in 'the retort 'and the refined metal passes over the bridge 13 and settles in the condenser until time for drawing; the drawing is then accomplished by removing These metallic bars are the ceramic plug 18, the refined metal then flowing freel into the ladle.

As hereto ore stated the old condensers employed a stopper of hard coal screenings, which completely closed the condenser and .made it impossible to lcharge while drawing.

In mv condenser the opening 16 may be employed -at all times for charging leven while the'metal is being drawn.

Having thus described myinvention, what I claim.is:-

1. A condenser having afixed head provided -with a series of openings at its drawing end.

2, A condenser constructed of ceramic material having an integral head at its drawing end, there beinga continuously open charging and venting opening in. said head, and a drawing opening in said head, and a ceramic plug for said drawing opening.

3. A condenser constructed of ceramic material having at its retort end an integral bridge and a down turned ange, and at' its drawing' end an integral head, there being charging and drawing openings formed in' -sald head and a ceramlc closure for said drawing opening.

4. Inrcombination with a retort, a condenser having at its retort end a fixed bridge and a downturned flange arranged to prevent leakage between the abutting ends of the retort and condenser, and said condenser having a fixed head at its drawin end profl vided with a drawing opening; an a charging opening.

In'testimony whereof, Ihave signed my name to this specification, in presence ofr two subscribing witnesses.

JOHN G. GRANBERG.

Witnesses: Y

R. G. ORWIG, M.' E. KLEE. 

